CN107693035A - A kind of x-ray imaging device and method that a variety of track scannings can be achieved - Google Patents
A kind of x-ray imaging device and method that a variety of track scannings can be achieved Download PDFInfo
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- A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
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- A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
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Abstract
The x-ray imaging device and method of a variety of track scannings can be achieved, control the motion of radiographic source, flat panel detector respectively by the one or six shaft mechanical arm, the one or six shaft mechanical arm, and object to be scanned is positioned in loading supporting table, the center of radiographic source, flat panel detector, scanning object is controlled on the same line, forms basic mechanical scanning system；Pass through the motion of six shaft mechanical arms, different track scannings is carried out according to being actually needed, allow six shaft mechanical arms and turntable synchronously to carry out corresponding track motion, complete not co-orbital scan mode, improve the versatility of x-ray imaging device and the diversity of scan mode；The device disclosure satisfy that a variety of scanning tracks, and scope of activities is big, can simulate existing all CT scan modes, and its track scanning mode has diversity, and disclosure satisfy that the different scanning demand in practical application.
Description
Technical field
The present invention relates to x-ray imaging field, more particularly to a kind of x-ray imaging device of multi-trace scanning and its side
Method.
Background technology
X-ray imaging technology is the imaging skill that a kind of data for projection using X ray through object reconstructs object structures
Art, conventional X-ray apparatus generally comprise X-ray tube, ionization chamber detector array, mechanical scanning system, Digital Image Processing
The part such as system forms, and it has merged the advantage of the subjects such as physics, electronics, machinery and computer, is that medical diagnosis and industry are examined
Survey provides highly useful means.In order to which the interior of articles different structure for overcoming typical X-ray to be imaged overlaps, people
Typical X-ray tomograph imaging method is have developed again, such as X-CT (X-Computed Tomography).CT tomography technologies
Principle be to carry out 360 ° of rotation sweep to object with X ray, obtain the two dimensional image of all directions, using algorithm for reconstructing from
And obtain the process of the 3-D view of object.With CT technologies and each professional discipline development, CT has in terms of material detection
Huge advantage, it is widely applied in industries such as medical science, engineering, geophysics, safety monitorings.
CT machines are applied once input, and associated technology is with rapid changepl. never-ending changes and improvements.Between short decades, have been subjected to from
The first generation is to the 5th generation CT, from axial scan mode to spiral scan pattern.DTS (chromatographical X-ray digitized photography) is a kind of
The finite angle image rebuilding method applied on CT.Also increasing producer and research institute start to be directed to CT development work
Make so that the development of CT technologies is swift and violent.For example Wei Tai Co., Ltds of South Korea have invented a kind of X ray sensor using narrow width and obtained
Whole FOV 3 D X-ray imaging device imaging method (Cui Sheng one, peace handle person of outstanding talent etc.X ray imaging devices and X ray into
Image space method application numbers:201480057626.4), the patent supports radiographic source and X ray sensor with a pivoted arm, makes it
Toward each other, allow pivoted arm to rotate and move around rotary shaft between x-ray source and sensor, so that X ray is along described
FOV multiple directions are launched.It will be seen that the device is x-ray source carries out some angle with sensor around sweep object
Rotary scanning, pivoted arm length is that the distance between radiographic source and sensor are invariable, that is to say, that only a kind of rule
The scanning track set.And for example x-ray imaging equipment (primary karr, the Ge Erweice with C bow arms of primary karr et al. invention
There is the x-ray imaging equipment application numbers of C bow arms Deng:201420736313.9), wherein, the end of C bow arms is penetrated provided with X
Line source and detector, C bend arm and are supported in a manner of it can surround centre-line of track rotation on fixed arm.It can be appreciated that this device
C bow arm size fix, that is, scan track radius be fixed, can not change scanning track shape.These equipment are all
There is a common feature to be, what the scan mode of various x-ray imaging equipment and track be to determine, it can be only done defined
Only one or several kinds of track scanning modes, DTS scanning be also difficult to, flexibility ratio is not high, and track scanning mode is too
It is single to be extremely restricted.
Therefore, in view of the shortcomings of the prior art, providing a kind of x-ray imaging device and method that a variety of track scannings can be achieved
To overcome prior art deficiency very necessary.
The content of the invention
A kind of X that a variety of track scannings can be achieved is provided it is an object of the invention to avoid the deficiencies in the prior art part
Ray imaging device and method, a kind of x-ray imaging device that a variety of track scannings can be achieved and method can be realized a variety of
Track scanning, x-ray imaging device is allowed to realize more functions.
The above-mentioned purpose of the present invention is realized by following technological means.
A kind of x-ray imaging device that a variety of track scannings can be achieved, for providing a variety of scan modes, is provided with X and penetrates
Line apparatus, projected image acquisition device and loading support meanss；Loading support meanss are arranged at X-ray apparatus and projected image obtains
Take between device；
The center of the base of X-ray apparatus, projected image acquisition device and loading support meanss is on same level straight line；
X-ray apparatus are corresponding with the position of projected image acquisition device.
Above-mentioned, X-ray apparatus are provided with first base, the one or six shaft mechanical arm, the first fixture, x-ray source and light chopper；
Above-mentioned, the one or six shaft mechanical arm is installed on the first base, and the first fixture is fixed on the one or six shaft mechanical
The end of arm, the x-ray source are fixed on first fixture, and what the light chopper was located at the x-ray source goes out beam mouth position；
Above-mentioned, projected image acquisition device is provided with second base, the two or six shaft mechanical arm, the second fixture and flat board detection
Device；
Above-mentioned, the two or six shaft mechanical arm is fixed on second base, and the second fixture is fixed on the two or the six shaft mechanical arm
End, the flat panel detector are fixed on the clamping part of the second fixture；
Loading support meanss are provided with the 3rd base, servomotor, turntable and the loading branch for laying scanned
Support platform；
Above-mentioned, servomotor is fixed on the 3rd base, and the turntable rotating dress is assigned in the 3rd base and passes through institute
Servomotor driving is stated, the loading supporting table is fixed on the turntable；
Above-mentioned, first base, second base, the bottom four corners of the 3rd base are respectively arranged with universal wheel；
Above-mentioned, x-ray source is relative with flat panel detector and sets, and the central ray of x-ray source is perpendicular to flat panel detector,
And perpendicular to the center of flat panel detector；The center of object is scanned in x-ray source, flat panel detector and loading supporting table same
On one horizontal linear；Turntable, supporting table, the geometric center of scanning die body are all the time on same plumb line.
Preferably, x-ray source, scanning object, flat panel detector are located at same horizontal line；The x-ray source and flat board are visited
It is motionless to survey device, turntable drives scanning object to rotate a circle.
Preferably, x-ray source, scanning object, flat panel detector are located at same horizontal line；The turntable drives scanning thing
Body rotates, while the one or the six shaft mechanical arm drives x-ray source, the two or the six shaft mechanical arm to drive flat panel detector vertical
Motion upwards.
Preferably, x-ray source, scanning object, flat panel detector are located at same horizontal line；The scanning object, flat board are visited
It is motionless to survey device remains stationary；
X-ray source stops after vertical guide of one or the six shaft mechanical arm drive x-ray source along scanning object often moves fixed range
Stay once, carry out single pass, stop scanning after the completion of by the vertical guide scanning for scanning object；
Preferably, x-ray source, scanning object, flat panel detector are centrally located at same horizontal line, carry out DTS tracks and sweep
Retouch.
Preferably, scanning object is close to flat panel detector, and keeps scanning object transfixion, and in x-ray source
The heart all the time the center with the flat panel detector in same level；
One or six shaft mechanical arm drives x-ray source to drive flat panel detector in the horizontal plane with the two or the six shaft mechanical arm
Move along a straight line and do travel directions moving sweep.
Preferably, scanning object is close to flat panel detector, and both remains stationaries are motionless, and the one or six shaft mechanical arm drives
X-ray source is in the horizontal direction using the center of flat panel detector end face as the center of circle, with x-ray source and the center of flat panel detector end face
Horizontal range is that radius makees arc orbit moving sweep.
Preferably, scanning object is close to flat panel detector, and both remains stationaries are motionless, and the one or six shaft mechanical arm drives
X-ray source along the horizontal plane on rectilinear orbit motion；The rectilinear orbit is vertical with line in scanning object, flat panel detector, and X
Beam center line all the time with the center of the flat panel detector active surface on the same line.
Preferably, scan object transfixion, flat panel detector and x-ray source respectively along the horizontal plane on the distance specified be
Radius, using the horizontal center point for scanning thing as the center of circle, make arc orbit with respect to opposite direction moving sweep, and x-ray source goes out beam mouth
The line at center and flat panel detector center passes through the center of scanning object all the time.
The x-ray imaging device and method of achievable a variety of track scannings of the present invention, pass through the one or six shaft mechanical arm, the
One or six shaft mechanical arms control the motion of radiographic source, flat panel detector respectively, and object to be scanned is positioned in loading supporting table,
The center of radiographic source, flat panel detector, scanning object is controlled on the same line, forms basic mechanical scanning system；It is logical
The motion of six shaft mechanical arms is crossed, different track scanning is carried out according to being actually needed, allows six shaft mechanical arms and the same stepping of turntable
The corresponding track motion of row, completes not co-orbital scan mode, improves the versatility and scan mode of x-ray imaging device
Diversity；Track needed for a variety of different scannings is disclosure satisfy that, scope of activities is big, meets the different scanning in practical application
Demand.
Brief description of the drawings
Using accompanying drawing, the present invention is further illustrated, but the content in accompanying drawing does not form any limit to the present invention
System.
Fig. 1 is the structural representation of the x-ray imaging device of a variety of track scannings of the present invention.
Fig. 2 is the total schematic layout pattern in space of the x-ray imaging device of a variety of track scannings of the present invention.
Fig. 3 is that schematic diagram is moved in the track of circular orbit scan mode.In figure, radiographic source and detector are motionless, scan object
Rotate a circle.
Fig. 4 is that schematic diagram is moved in the track of spiral scan pattern.In figure, the rotary shaft rotation of scanning Objects around A, while ray
Source and detector upward vertical movement.
Fig. 5 is the schematic diagram of point motion scan mode.Point in figure is the point set that radiographic source center translation comes out.
Fig. 6 is that schematic diagram is moved in the track of DTS scan modes type one.In figure, scan object transfixion, detector and
Radiographic source move along a straight line track toward opposite direction move.
Fig. 7 is that schematic diagram is moved in the track of DTS scan modes type two.In figure, detector and scanning object are close to and quiet
Only motionless, arc orbit of the radiographic source along specified radius is moved.
Fig. 8 is that schematic diagram is moved in the track of DTS scan modes type three.In figure, detector and scanning object are close to and quiet
Only motionless, radiographic source moves along straight path.
Fig. 9 is that schematic diagram is moved in the track of DTS scan modes type four.In figure, object transfixion, flat board detection are scanned
Device and radiographic source carry out opposite direction motion respectively along two arc orbits on horizontal plane.
Figure 10 is the specific implementation flow chart of the track scanning mode of the present invention.
Embodiment
The invention will be further described with the following Examples.
Embodiment 1.
It is a kind of can be achieved a variety of track scannings x-ray imaging device, as shown in Figure 1, 2, 3, be provided with X-ray apparatus,
Projected image acquisition device and loading support meanss；Loading support meanss are arranged at X-ray apparatus and projected image acquisition device
Between.
The center of the base of X-ray apparatus, projected image acquisition device and loading support meanss is on same level straight line；
X-ray apparatus are corresponding with the position of projected image acquisition device.
X-ray apparatus are provided with first base, the one or six shaft mechanical arm, the first fixture, x-ray source and light chopper.First
Six shaft mechanical arms are installed on the first base, and the first fixture is fixed on the end of the one or six shaft mechanical arm, and x-ray source is fixed on
First fixture, what light chopper was located at x-ray source goes out beam mouth position.
Projected image acquisition device is provided with second base, the two or six shaft mechanical arm, the second fixture and flat panel detector.The
Two or six shaft mechanical arms are fixed on second base, and the second fixture is fixed on the end of the two or six shaft mechanical arm, and flat panel detector is fixed
In the clamping part of the second fixture.
Loading support meanss are provided with the 3rd base, servomotor, turntable and the loading branch for laying scanned
Support platform.Servomotor is fixed on the 3rd base, and turntable rotating dress is assigned in the 3rd base and is driven by servomotor, institute
Loading supporting table is stated to be fixed on the turntable.
First base, second base, the bottom four corners of the 3rd base are respectively arranged with universal wheel.X-ray source is visited with flat board
It is relative and set to survey device, and the central ray of x-ray source is perpendicular to flat panel detector, and perpendicular to the center of flat panel detector；X
The center of object is scanned in radiographic source, flat panel detector and loading supporting table on same level straight line；Turntable, supporting table,
The geometric center of scanning die body is all the time on same plumb line.
The x-ray imaging device of achievable a variety of track scannings of the present invention, passes through the one or six shaft mechanical arm, the one or six axle
Mechanical arm controls the motion of radiographic source, flat panel detector respectively, and object to be scanned is positioned in loading supporting table, ray
Source, flat panel detector, the center of scanning object control on the same line, form basic mechanical scanning system；Pass through six axles
The motion of mechanical arm, different track scannings is carried out according to being actually needed, allow six shaft mechanical arms and turntable synchronously to carry out accordingly
Track motion, complete not co-orbital scan mode, improve x-ray imaging device versatility and scan mode it is various
Property；Track needed for a variety of different scannings is disclosure satisfy that, scope of activities is big, meets the different scanning demand in practical application.
Embodiment 2.
A kind of x-ray imaging device that a variety of track scannings can be achieved, specifically, x-ray source model Spellman
PDM, ray tube voltage are 50kV to 90kV, and weight is total up to 10.7kg；The model Varian's of the flat panel detector of use
PaxScan2520D, quality 4.38kg, the gross area are 19.5 × 24.4cm；The model of the one or the six shaft mechanical arm used
FANUC M-20iA, it is 20kg that maximum, which is born a heavy burden, and brachium is 1811mm up to radius, repetitive positioning accuracy≤0.08mm, inputs electricity
Source is three-phase 380-415V, to control radiographic source and light chopper；The model FANUC of the two or the six shaft mechanical arm used LR
Mate 200iD/7L, it be 7kg that maximum, which is born a heavy burden, and the reachable radius of arm exhibition is 717mm, repetitive positioning accuracy≤0.02mm, input power
For three-phase 380-415V, to control flat panel detector；The control system of two six shaft mechanical arms can be by writing program i.e.
Its motion is can control, the motion up to any form between any two points in three dimensions can be carried out；Servomotor is adopted
The HG-SR102J of model Mitsubishi, includes PLC, and editable driven by program controls the motion of turntable；Therefore it is above-mentioned in
The concrete structure of six shaft mechanical arms is prior art, is just no longer specifically repeated.
X-ray source is relative with flat panel detector and puts, and central ray is perpendicular to flat panel detector, and intersection point is flat board
The center of detector；The center of object is scanned in x-ray source, flat panel detector and loading supporting table on same level straight line；
Turntable, supporting table, the geometric center of scanning die body are all the time on same plumb line.
The application method of the device is as follows:
The first step, according to Fig. 2 layout, first, second, third movable pedestal is well placed, lower margin is beaten and fixes.Press
X-ray source device, loading support meanss and projected image acquisition device are installed according to above-mentioned method.Determine in x-ray source
The three-dimensional coordinate of the heart, flat panel detector center and turntable；
Second step, according to different scanning tracks, determine x-ray source, flat panel detector, the pass of turntable relative position
System, and the movement locus of each several part is determined, set the initial condition of scanning；
3rd step, according to different track scanning conditions and actually required scanning pattern, detected respectively to x-ray source flat board
Device and turntable set corresponding specific sweep parameter, set the design parameter of each scanning track；
4th step, according to different scanning tracks, artificial debugging is carried out to various scan modes with simulation software, realizes institute
The scanning track motion needed；
5th step, the program of various track scanning modes is written in controller and run, carries out corresponding track
Mechanical movement, you can realize required track scanning.
X ray source module, loading supporting module and projected image acquisition module are being installed according to Fig. 2 space layout figure,
The initial position of device is defined as：X-ray source is relative with flat panel detector and puts, and central ray now is visited perpendicular to flat board
Device is surveyed, and intersection point is the center of flat panel detector；X-ray source, flat panel detector are with scanning the center of die body in same level
On straight line；Turntable, supporting table, the geometric center of scanning die body are all the time on same plumb line.
The one or six shaft mechanical arm of X ray source module is first controlled, described radiographic source and described are scanned in die body
The distance of the heart is set to 56cm, then allows the one or six shaft mechanical arm transfixion.Then the second of projected image acquisition module is controlled
Six shaft mechanical arms, the distance at described flat panel detector and the center of described scanning die body is set to 27cm, then allows second
It is confused six shaft mechanical arm transfixions.Finally, with the turntable of Serve Motor Control projected image acquisition module, allow scanning object with
Turntable and carry out 360 ° rotation movement along rotary shaft axle, 1 degree every turn, x-ray source is just opened and closed once, projected image acquisition module
With regard to gathering primary X-ray image-forming information, circular orbit scan can be relatively completed.
Above-mentioned, x-ray source, scanning object, flat panel detector are located at same horizontal line；X-ray source and the flat board detection
Device is motionless, and turntable drives scanning object to rotate a circle.
Space layout figure is as shown in Figure 2.The center of first base, second base and the 3rd base is positioned over same straight line
On, first base is 156cm with the 3rd base distance, and the distance with second base is 234cm；By controlling X ray source module
The one or six shaft mechanical arm, the distance at center of x-ray source and scanning object is set to 56cm, then allows the one or six shaft mechanical arm
Transfixion.Then the two or six shaft mechanical arm of projected image acquisition device is controlled, by flat panel detector with scanning in object
The distance of the heart is set to 27cm, then allows the two or six shaft mechanical arm transfixion；Mould is obtained by Serve Motor Control projected image
The turntable of block, allow and scan object as turntable is along rotary shaft axle progress 360 ° rotation movement, 1 degree every turn, x-ray source is just opened
Close once, projected image acquisition device just gathers primary X-ray image-forming information, can relatively complete circular orbit scan, pass through
Rotation of the servomotor to scanning object, the scanning of different azimuth can be carried out to scanned object, improve scanning range.
Embodiment 3.
The method that helical scanning is carried out by the x-ray imaging device of a variety of track scannings of embodiment 1, as shown in figure 4,
X-ray source, scanning object, flat panel detector are located at same horizontal line；Turntable drives scanning object rotation, while the one or six axle
Mechanical arm drives x-ray source upward vertical movement, and the two or six shaft mechanical arm drives flat panel detector upward vertical movement.
The one or six shaft mechanical arm is controlled, described x-ray source and the distance at the center of described scanning object are set to
56cm.By the two or six shaft mechanical arm, described flat panel detector and the distance at the center of described scanning object are set to
27cm.Then, with the turntable of Serve Motor Control projected image acquisition module, scanning object is allowed as turntable is along rotary shaft
Axle carries out 360 ° rotation movement；At the same time, control the one or six described shaft mechanical arm and the two or six shaft mechanical arm simultaneously under
The track motion of plumb line is up carried out, i.e., x-ray source and flat panel detector relatively move from lower to upper together.Turntable is every
Turn 1 degree, radiographic source is just opened and closed once, and projected image acquisition module just gathers primary X-ray image-forming information, at the same time, X ray
Source and detector carry out the rising of default step-length along above-mentioned vertical track, you can complete helical scanning.
By setting helical scanning track, the efficiency of scanning, and the accuracy of scanning can be further improved.
Embodiment 4.
A method for motion track scanning is carried out by the x-ray imaging device of a variety of track scannings of embodiment 1, such as schemed
Shown in 5, x-ray source, scanning object, flat panel detector are located at same horizontal line；The scanning object, flat panel detector keep quiet
It is only motionless；One or six shaft mechanical arm drives vertical guide of the x-ray source along scanning object often to move x-ray source stop after fixed range
Once, single pass is carried out, stops scanning after the completion of by the vertical guide scanning for scanning object.
By the two or six shaft mechanical arm, the centre distance of flat panel detector and scanning object is set to 27cm.Then, then control
One or six shaft mechanical arm of X ray source module processed, x-ray source and the distance at the center of scanning object are set to 56cm, control the
One or six shaft mechanical arms, it is allowed to control radiographic source to be carried out on vertical guide between points, up and down and 1mm is moved in left and right respectively, often
The a bit of time is a little stopped, x-ray source is once opened and closed, and projected image acquisition module just gathers primary X-ray imaging letter
Breath, all point motion scans finish in by plane point set, by setting lattice scanning track so that the present apparatus can fit
Complicated scanning circumstance is answered, while also extends the species of the scanning object of the present apparatus.
Embodiment 5.
The method that DTS track scannings are carried out by the x-ray imaging device of a variety of track scannings of embodiment 1, such as Fig. 6 institutes
Show, the x-ray source, scanning object, flat panel detector are centrally located at same horizontal line, carry out DTS track scannings.
Scanning object be close to flat panel detector, and keep scan object transfixion, and the center of x-ray source all the time with
The center of the flat panel detector is in same level；
One or six shaft mechanical arm drives x-ray source to drive flat panel detector in the horizontal plane with the two or the six shaft mechanical arm
Move along a straight line and do travel directions moving sweep.
First, allow projected image acquisition device motionless, the two or six shaft mechanical arm of projected image acquisition device is controlled, by it
On flat panel detector along central ray move to scan object at a distance of 0.5cm at, then edge penetrated perpendicular to center now
The horizontal line translation 25cm of line.Then, the one or six shaft mechanical arm of x-ray source device is controlled, radiographic source is put down along central ray
Move at range sweep object 56cm, then translate 25cm, its translation direction and detector along the horizontal line parallel to detector
Translation direction it is opposite.Meanwhile control going out beam mouth and should being projected in flat towards scanning die body, i.e., central ray now for radiographic source
The center of partitioned detector, and control centre's ray is all the time perpendicular to flat panel detector.Using state now as starting, institute is controlled
The first, second 6 shaft mechanical arms stated, radiographic source, flat panel detector is allowed to carry out opposite direction motion respectively along above-mentioned horizontal line,
Their orbital path is straight line, at the same time, the central ray of radiographic source all the time upright projection at flat panel detector center.
Radiographic source often translates a default step-length with flat panel detector along above-mentioned track opposite direction, and x-ray source is just opened and closed once, perspective view
As acquisition module just gathers primary X-ray image-forming information, 50cm is translated respectively, you can complete the scanning of DTS the first type；
By setting DTS track scannings quick and precisely to complete process of reconstruction, and obtain satisfied image effect.
Embodiment 6.
A kind of method of DTS track scannings is carried out by the x-ray imaging device of a variety of track scannings of embodiment 1, such as
Shown in Fig. 7, x-ray source, scanning object, flat panel detector are centrally located at same horizontal line, carry out DTS track scannings.
Scanning object is close to flat panel detector, and both remains stationaries are motionless, and the one or six shaft mechanical arm drives x-ray source
In the horizontal direction using the center of flat panel detector end face as the center of circle, x-ray source and the central horizontal distance of flat panel detector end face
For radius, make arc orbit moving sweep.
First, the two or six shaft mechanical arm of projected image acquisition device is controlled, flat panel detector thereon is penetrated along center
Line is moved to scanning object at 0.5cm, then allows projected image acquisition module motionless with projected image acquisition module.
Then, the one or six shaft mechanical arm of X ray source module is controlled, radiographic source is moved into range sweep object 56cm along central ray
Place, and arcuate movement is done for radius with this distance, 60 ° are offset in the horizontal plane, and the center of the circular arc is in flat panel detector
The heart, meanwhile, control radiographic source goes out beam mouth towards scanning object, i.e., central ray now should be projected in flat panel detector
The heart.Using the point as starting point, control the one or six described shaft mechanical arm, allow radiographic source along it is above-mentioned using flat panel detector center as
The center of circle, 56cm are that the circular arc of radius is moved, i.e., its orbital path is circular arc, and at the same time, the central ray of radiographic source begins
Flat panel detector center is projected in eventually.Radiographic source often moves 1 degree, and just once, projected image acquisition module just gathers an X for opening and closing
Radial imaging information, when the radian of the arc track of motion reaches 120 °, you can complete the scanning of DTS second of type；It is logical
Process of reconstruction can quick and precisely be completed by crossing setting DTS track scannings, and obtain satisfied image effect.
Embodiment 7.
A kind of method of DTS track scannings is carried out by the x-ray imaging device of a variety of track scannings of embodiment 1, such as
Shown in Fig. 8, x-ray source, scanning object, flat panel detector are centrally located at same horizontal line, carry out DTS track scannings.
Scanning object is close to flat panel detector, and both remains stationaries are motionless, and the one or six shaft mechanical arm drives x-ray source
Rectilinear orbit motion on along the horizontal plane；The rectilinear orbit is vertical with line in scanning object, flat panel detector, and X-ray beam
Center line all the time with the center of the flat panel detector active surface on the same line.
Control projected image obtains the two or six shaft mechanical arm of device, and flat panel detector thereon is moved to along central ray
With scanning object at 0.5cm, then allow projected image acquisition device motionless with projected image acquisition device.Then, control
One or six shaft mechanical arm of x-ray source device processed, radiographic source is moved at range sweep die body 56cm along central ray, then
25cm is translated along the horizontal line parallel to flat panel detector, meanwhile, control radiographic source goes out beam mouth towards die body is scanned, i.e., now
Central ray should be projected in the center of flat panel detector.Using the point as starting point, the one or six described shaft mechanical arm is controlled, is allowed
Radiographic source moves along the above-mentioned horizontal line parallel to detector, i.e., its orbital path is straight line, at the same time, in radiographic source
Heart ray is projected in flat panel detector center all the time.Radiographic source often moves a default step-length according to above-mentioned movement locus, just
Once, projected image acquisition module just gathers primary X-ray image-forming information for opening and closing, translates 50cm, you can complete the third of DTS
The scanning of type；By setting DTS track scannings quick and precisely to complete process of reconstruction, and obtain satisfied image effect.
Embodiment 8.
A kind of method of DTS track scannings is carried out by the x-ray imaging device of a variety of track scannings of embodiment 1, such as
Shown in Fig. 9, x-ray source, scanning object, flat panel detector are centrally located at same horizontal line, carry out DTS track scannings.
Scan object transfixion, the flat panel detector and the x-ray source respectively along the horizontal plane on the distance specified
For radius, using the horizontal center point of the scanning thing as the center of circle, make arc orbit with respect to opposite direction moving sweep, and the X is penetrated
Line source goes out beam mouth center with the line at the flat panel detector center all the time through the center of the scanning object.
First, allow projected image acquisition device motionless, the two or six shaft mechanical arm of projected image acquisition device is controlled, by it
On flat panel detector moved to along central ray with scanning die body center at a distance of 27cm at, and be that radius does arc with this distance
Motion, 60 ° is offset in the horizontal plane, the center of the circular arc is the geometric center of scanning die body.Then, X ray source module is controlled
The one or six shaft mechanical arm, radiographic source is moved at range sweep object 56cm along central ray, and using this distance as radius
Arcuate movement is done, the center of the circular arc is the geometric center of scanning die body, offsets 60 ° in the horizontal plane, its offset direction is with visiting
The above-mentioned offset direction for surveying device is opposite.Meanwhile the beam mouth that goes out of radiographic source is controlled to be answered towards scanning object, i.e., central ray now
Upright projection is at the center of flat panel detector.Using state now as starting, first, second 6 described shaft mechanical arms are controlled,
X-ray source, flat panel detector is allowed to carry out opposite direction motion respectively along above-mentioned arc track, their orbital path is circle
Arc, at the same time, the central ray of x-ray source all the time upright projection at flat panel detector center.Radiographic source and flat panel detector
1 degree is often moved along above-mentioned movement locus opposite direction, just once, projected image acquisition module just gathers primary X-ray imaging for opening and closing
Information, when the radian of the arc track of motion reaches 120 °, you can complete the scanning of DTS the 4th type.By setting DTS
Track scanning can quick and precisely complete process of reconstruction, and obtain satisfied image effect.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than the present invention is protected
The limitation of scope, although being explained in detail with reference to preferred embodiment to the present invention, one of ordinary skill in the art should manage
Solution, can modify or equivalent substitution to technical scheme, without departing from technical solution of the present invention essence and
Scope.
Claims (10)
- A kind of 1. x-ray imaging device that a variety of track scannings can be achieved, for providing a variety of scan modes, it is characterised in that： It is provided with X-ray apparatus, projected image acquisition device and loading support meanss；Loading support meanss be arranged at X-ray apparatus and Between projected image acquisition device；The center of the base of X-ray apparatus, projected image acquisition device and loading support meanss is on same level straight line；X is penetrated Line apparatus is corresponding with the position of projected image acquisition device.
- 2. the x-ray imaging device according to claim 1 that a variety of track scannings can be achieved, it is characterised in that：The X is penetrated Line apparatus is provided with first base, the one or six shaft mechanical arm, the first fixture, x-ray source and light chopper；One or the six shaft mechanical arm is installed on the first base, and the first fixture is fixed on the end of the one or the six shaft mechanical arm Portion, the x-ray source are fixed on first fixture, and what the light chopper was located at the x-ray source goes out beam mouth position；The projected image acquisition device is provided with second base, the two or six shaft mechanical arm, the second fixture and flat panel detector；Two or the six shaft mechanical arm is fixed on second base, and the second fixture is fixed on the end of the two or the six shaft mechanical arm, The flat panel detector is fixed on the clamping part of the second fixture；The loading support meanss are provided with the 3rd base, servomotor, turntable and the loading branch for laying scanned Support platform；The servomotor is fixed on the 3rd base, and the turntable rotating dress is assigned in the 3rd base and by described Servomotor is driven, and the loading supporting table is fixed on the turntable；The first base, second base, the bottom four corners of the 3rd base are respectively arranged with universal wheel；X-ray source is relative with flat panel detector and sets, and the central ray of x-ray source is perpendicular to flat panel detector, and vertically In the center of flat panel detector；The center that object is scanned in x-ray source, flat panel detector and loading supporting table is straight in same level On line；Turntable, supporting table, the geometric center of scanning die body are all the time on same plumb line.
- 3. being carried out by the x-ray imaging device of achievable a variety of track scannings as described in any one of claim 1 or 2 Imaging method, it is characterised in that：The x-ray source, scanning object, flat panel detector are located at same horizontal line；The x-ray source And flat panel detector is motionless, turntable drives scanning object to rotate a circle.
- 4. being carried out by the x-ray imaging device of achievable a variety of track scannings as described in any one of claim 1 or 2 Imaging method, it is characterised in that：The x-ray source, scanning object, flat panel detector are located at same horizontal line；The turntable Scanning object rotation is driven, while the one or the six shaft mechanical arm drives x-ray source, the two or the six shaft mechanical arm to drive flat board Detector upward vertical movement.
- 5. being carried out by the x-ray imaging device of achievable a variety of track scannings as described in any one of claim 1 or 2 Imaging method, it is characterised in that：The x-ray source, scanning object, flat panel detector are located at same horizontal line；The scanning thing Body, flat panel detector remains stationary are motionless；X-ray source stops after vertical guide of one or the six shaft mechanical arm drive x-ray source along scanning object often moves fixed range Stay once, carry out single pass, stop scanning after the completion of by the vertical guide scanning for scanning object；
- 6. being carried out by the x-ray imaging device of achievable a variety of track scannings as described in any one of claim 1 or 2 Imaging method, it is characterised in that：The x-ray source, scanning object, flat panel detector are centrally located at same horizontal line, carry out DTS track scannings.
- 7. being carried out by the x-ray imaging device of achievable a variety of track scannings as described in any one of claim 1 or 2 Imaging method, it is characterised in that：The scanning object is close to flat panel detector, and keeps scanning object transfixion, and X is penetrated The center of line source all the time the center with the flat panel detector in same level；One or six shaft mechanical arm drives x-ray source to drive flat panel detector in the horizontal plane along straight with the two or the six shaft mechanical arm Travel directions moving sweep is done in line motion.
- 8. being carried out by the x-ray imaging device of achievable a variety of track scannings as described in any one of claim 1 or 2 Imaging method, it is characterised in that：The scanning object is close to flat panel detector, and both remains stationaries are motionless, the one or six axle Mechanical arm drives x-ray source in the horizontal direction using the center of flat panel detector end face as the center of circle, with x-ray source and flat panel detector The central horizontal distance of end face makees arc orbit moving sweep for radius.
- 9. being carried out by the x-ray imaging device of achievable a variety of track scannings as described in any one of claim 1 or 2 Imaging method, it is characterised in that：The scanning object is close to flat panel detector, and both remains stationaries are motionless, the one or six axle Mechanical arm drive x-ray source along the horizontal plane on rectilinear orbit motion；The rectilinear orbit in scanning object, flat panel detector with connecting Line is vertical, and X-ray beam center line all the time with the center of the flat panel detector active surface on the same line.
- 10. carried out by the x-ray imaging device of achievable a variety of track scannings as described in any one of claim 1 or 2 Imaging method, it is characterised in that：The scanning object transfixion, the flat panel detector and the x-ray source edge respectively The distance specified on horizontal plane is radius, using the horizontal center point of the scanning thing as the center of circle, makees arc orbit with respect to opposite direction Moving sweep, and the x-ray source goes out beam mouth center and the line at the flat panel detector center passes through the scanning thing all the time The center of body.
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